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bootcards 

// Register Style
function custom_styles() {

	wp_register_style( 'bootcards-ios', '//cdnjs.cloudflare.com/ajax/libs/bootcards/1.0.0/css/bootcards-ios.min.css', false, '1.0.0' );
	wp_enqueue_style( 'bootcards-ios' );

	wp_register_style( 'bootcards-android', '//cdnjs.cloudflare.com/ajax/libs/bootcards/1.0.0/css/bootcards-android.min.css', false, '1.0.0' );
	wp_enqueue_style( 'bootcards-android' );

	wp_register_style( 'bootcards-desktop', '//cdnjs.cloudflare.com/ajax/libs/bootcards/1.0.0/css/bootcards-desktop.min.css', false, '1.0.0' );
	wp_enqueue_style( 'bootcards-desktop' );

}
add_action( 'wp_enqueue_scripts', 'custom_styles' );